1 files changed, 14 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/g++.dg/cpp0x/sfinae8.C b/gcc-4.9/gcc/testsuite/g++.dg/cpp0x/sfinae8.C
new file mode 100644
index 0000000..43381d0
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/g++.dg/cpp0x/sfinae8.C
@@ -0,0 +1,14 @@
+// PR c++/48449
+// { dg-do compile { target c++11 } }
+
+template<class T, class = decltype(T())>
+char f(int);
+
+template<class>
+char (&f(...))[2];
+
+struct A { virtual ~A() = 0; };
+
+static_assert(sizeof(f<int&>(0)) != 1, "Error");
+static_assert(sizeof(f<void()>(0)) != 1, "Error");
+static_assert(sizeof(f<A>(0)) != 1, "Error");